From 6a6ef888e1132505da264e395d2c1ca08fffecc5 Mon Sep 17 00:00:00 2001
From: tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>
Date: Wed, 5 Dec 2007 22:51:01 +0000
Subject: - music-visualization support added. - hardcoded to projectm at the
 moment. - needs a plugin-structure makeover

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@677 b956fd51-792f-4845-bead-9b4dfca2ff2c
---
 Game/Code/Classes/UVisualizer.pas | 201 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 Game/Code/Classes/UVisualizer.pas

diff --git a/Game/Code/Classes/UVisualizer.pas b/Game/Code/Classes/UVisualizer.pas
new file mode 100644
index 00000000..3bea8f54
--- /dev/null
+++ b/Game/Code/Classes/UVisualizer.pas
@@ -0,0 +1,201 @@
+{############################################################################
+#                   Visualizer support for UltraStar deluxe                 #
+#                                                                           #
+#   Created by hennymcc                                                     #
+#   based on UVideo.pas                                                     #
+#############################################################################}
+
+unit UVisualizer;
+
+interface
+
+{$IFDEF FPC}
+  {$MODE DELPHI}
+{$ENDIF}
+
+uses SDL,
+     UGraphicClasses,
+     textgl,
+     math,
+     OpenGL12,
+     SysUtils,
+     UIni,
+     {$ifdef DebugDisplay}
+     dialogs,
+     {$ENDIF}
+     projectM,
+     windows;
+
+procedure Init;
+procedure VisualizerStart;
+procedure VisualizerStop;
+procedure VisualizerGetFrame(Time: Extended);
+procedure VisualizerDrawGL(Screen: integer);
+procedure VisualizerTogglePause;
+
+const
+  VisualWidth = 640;
+  VisualHeight = 480;
+  gx = 32;
+  gy = 24;
+  fps = 30;
+  texsize = 512;
+
+var
+  pm: PProjectM;
+  VisualizerStarted, VisualizerPaused: Boolean;
+  VisualTex: glUint;
+  pcm_data: TPCM16;
+  hRC: Integer;
+  hDC: Integer;
+
+implementation
+
+procedure Init;
+begin
+  VisualizerStarted := False;
+  VisualizerPaused := False;
+  glGenTextures(1, PglUint(@VisualTex));
+	glBindTexture(GL_TEXTURE_2D, VisualTex);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+end;
+
+procedure VisualizerStart;
+begin
+exit;
+  VisualizerStarted := True;
+
+  New(pm);
+	projectM_reset(pm);
+
+	pm^.fullscreen := 0;
+  pm^.renderTarget^.texsize := texsize;
+	pm^.gx := gx;
+	pm^.gy := gy;
+	pm^.fps := fps;
+	pm^.renderTarget^.usePbuffers := 0;
+
+	pm^.fontURL := PChar('Visuals\fonts');
+	pm^.presetURL := PChar('Visuals\presets');
+
+	glPushAttrib(GL_ALL_ATTRIB_BITS);
+	projectM_init(pm);
+  glMatrixMode(GL_PROJECTION);
+  glPushMatrix();
+  glMatrixMode(GL_MODELVIEW);
+  glPushMatrix();
+  glMatrixMode(GL_TEXTURE);
+  glPushMatrix();
+	projectM_resetGL(pm, VisualWidth, VisualHeight);
+  glMatrixMode(GL_PROJECTION);
+  glPopMatrix();
+  glMatrixMode(GL_MODELVIEW);
+  glPopMatrix();
+  glMatrixMode(GL_TEXTURE);
+  glPopMatrix();
+  glPopAttrib();
+end;
+
+procedure VisualizerStop;
+begin
+  if VisualizerStarted then begin
+    VisualizerStarted := False;
+    Dispose(pm);
+  end;
+end;
+
+procedure VisualizerTogglePause;
+begin
+  if VisualizerPaused then VisualizerPaused:=False
+  else VisualizerPaused:=True;
+end;
+
+procedure VisualizerGetFrame(Time: Extended);
+var
+  i: integer;
+begin
+  exit;
+
+  if not VisualizerStarted then Exit;
+  if VisualizerPaused then Exit;
+
+  Randomize();
+
+	for i := 0 to 511 do
+  begin
+    pcm_data[0][i] := RandomRange(High(Smallint), Low(Smallint));
+    pcm_data[1][i] := pcm_data[0][i];
+  end;
+  addPCM16(pcm_data);
+
+  glPushAttrib(GL_ALL_ATTRIB_BITS);
+  glMatrixMode(GL_PROJECTION);
+  glPushMatrix();
+  glMatrixMode(GL_MODELVIEW);
+  glPushMatrix();
+  glMatrixMode(GL_TEXTURE);
+  glPushMatrix();
+  renderFrame(pm);
+  glFlush();
+  {
+  glBindTexture(GL_TEXTURE_2D, VisualTex);
+  glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 0, 0, VisualWidth, VisualHeight, 0);
+  }
+  glMatrixMode(GL_PROJECTION);
+  glPopMatrix();
+  glMatrixMode(GL_MODELVIEW);
+  glPopMatrix();
+  glMatrixMode(GL_TEXTURE);
+  glPopMatrix();
+  glPopAttrib();
+
+  glClear(GL_DEPTH_BUFFER_BIT);
+
+  {
+  glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
+
+  glEnable(GL_TEXTURE_2D);
+  glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+  glBindTexture(GL_TEXTURE_2D, VisualTex);
+  glBegin(GL_QUADS);
+    glTexCoord2f(0, 0); glVertex2f(-1, -1);
+    glTexCoord2f(1, 0); glVertex2f( 1, -1);
+    glTexCoord2f(1, 1); glVertex2f( 1,  1);
+    glTexCoord2f(0, 1); glVertex2f(-1,  1);
+  glEnd();
+  glDisable(GL_TEXTURE_2D);
+  }
+end;
+
+procedure VisualizerDrawGL(Screen: integer);
+begin
+{
+  // have a nice black background to draw on (even if there were errors opening the vid)
+  if Screen=1 then begin
+    glClearColor(0,0,0,0);
+    glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
+  end;
+  // exit if there's nothing to draw
+  if not VisualizerStarted then Exit;
+
+  glEnable(GL_TEXTURE_2D);
+  glEnable(GL_BLEND);
+  glColor4f(1, 1, 1, 1);
+  glBindTexture(GL_TEXTURE_2D, VisualTex);
+  glbegin(GL_QUADS);
+    glTexCoord2f(0, 0);
+    glVertex2f(400-VisualWidth/2, 300-VisualHeight/2);
+    glTexCoord2f(0, 1);
+    glVertex2f(400-VisualWidth/2, 300+VisualHeight/2);
+    glTexCoord2f(1, 1);
+    glVertex2f(400+VisualWidth/2, 300+VisualHeight/2);
+    glTexCoord2f(1, 0);
+    glVertex2f(400+VisualWidth/2, 300-VisualHeight/2);
+  glEnd;
+  glDisable(GL_TEXTURE_2D);
+  glDisable(GL_BLEND);
+}
+end;
+
+end.
-- 
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